there feet help them so much with the snow to walk on it and there claw help hunting and there hunger and the weight helps them run because when it is starving it can not run fast they run about 24 or more miles a day in summer  in winter it is hard for most animals to run or walk normally on ice or snow because they could get inside the ice or snow they were walking in or running. The fur and claw help it dig threw the snow. why wolverines have two layers of fur is because they live in a very cold place  and they need to survive in the cold.